CN108696340B - Method and device for sending and receiving feedback information - Google Patents
Method and device for sending and receiving feedback information Download PDFInfo
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- CN108696340B CN108696340B CN201710218208.4A CN201710218208A CN108696340B CN 108696340 B CN108696340 B CN 108696340B CN 201710218208 A CN201710218208 A CN 201710218208A CN 108696340 B CN108696340 B CN 108696340B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
Abstract
The invention provides a method and a device for sending and receiving feedback information, wherein the sending method comprises the following steps: receiving downlink data from a base station by User Equipment (UE) in an inactive state; and the UE in the inactive state utilizes the unauthorized uplink channel to confirm and feed back the downlink data reception. The method and the device solve the problem that the terminal cannot effectively transmit the downlink data confirmation feedback information in the inactive state, and achieve the effect that the terminal can effectively transmit the downlink data confirmation feedback information in the inactive state.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting and receiving feedback information.
Background
The fifth Generation mobile communication technology (5th Generation, abbreviated as 5G) under study in the third Generation partnership project (3rd Generation partnership project, abbreviated as 3GPP) has a high requirement on control plane delay, and requires that a User Equipment (UE) can enter a connected state within a time range of 10ms and start to transmit data. However, in a conventional Long-Term Evolution (LTE) system, many processes such as initial random access, connection establishment, registration authentication and the like need to be performed from an idle state to a connected state, which makes it difficult for the UE to enter the connected state within 10 ms. To overcome this problem, 3GPP introduced a new UE state, the inactive (inactive) state. When the UE enters this state from the connected state, the anchor base station (anchor eNB) and the core network to which the user is initially connected maintain all connection configurations of the user and process the context all the time, so that the user can directly enter the connected state only after completing the air interface configuration through a simple process similar to random access over the air interface. Meanwhile, in order to save power, the UE does not configure uplink control channel (PUCCH) and sounding (sounding) resources in an inactive state, and adopts a measurement and cell selection strategy similar to that in an idle state. Therefore, the user in an inactive state may lose uplink synchronization during the movement of the macro cell, i.e., the Timing advance (Timing advance) used for uplink transmission may not be used any more due to the movement, and the Timing advance measurement must be performed again through random access or similar process.
Many applications have background traffic flows in addition to short periods of large data transmissions. The frequency of sending data packets is generally lower and the data packets are smaller for this type of traffic flow. For these background services, if the UE in the inactive state can support direct data transmission, i.e. a small amount of data can be transmitted without switching to the connected state, signaling overhead and power consumption of the UE can be further saved. Therefore, how to support direct data transmission of the inactive users in the LTE system is a considerable problem. In the current discussion of 3GPP, the uplink direct data transmission may adopt unlicensed transmission, that is, a base station directly divides a part of radio resources to be exclusively used for sending uplink small data, where the part of radio resources may be allocated to a certain UE for exclusive use, or may be allocated to multiple UEs for sharing to perform uplink data transmission; the downlink direct data transmission may employ a mode in which small data is entrained in the paging message.
When the base station directly carries small data in the paging message, the UE still cannot acquire uplink synchronization, and cannot effectively transmit downlink data acknowledgement feedback information in an inactive state.
In view of the above technical problems, no effective solution has been proposed in the related art.
Disclosure of Invention
The embodiment of the invention provides a method and a device for sending and receiving feedback information, which are used for at least solving the problem that a terminal in the related art cannot effectively transmit downlink data confirmation feedback information in an inactive state.
According to an embodiment of the present invention, a method for sending feedback information is provided, including: receiving downlink data from a base station by User Equipment (UE) in an inactive state; and the UE in the inactive state utilizes an unauthorized uplink channel to confirm and feed back the downlink data reception.
Optionally, the feedback confirmation of the UE using the unlicensed uplink channel to receive the downlink data in the inactive state includes: the UE in the inactive state determines the unlicensed uplink channel according to configuration information corresponding to the unlicensed uplink channel, wherein the configuration information is determined by at least one of the following methods: the manner in which the base station notifies in the broadcast channel; the manner in which the base station notifies in the dedicated signaling channel; a mode predetermined by a standard protocol; and the UE in the inactive state utilizes the determined unauthorized uplink channel to confirm and feed back the downlink data.
Optionally, the configuration information includes at least one of: the position information of the time domain and the frequency domain of the unlicensed uplink channel; information of a modulation and coding mode sent by the unauthorized uplink channel; and whether the unlicensed uplink channel is attached with the information of the preamble or not.
Optionally, the receiving, by the UE in the inactive state, the downlink data from the base station includes: the UE in the inactive state receives a paging message sent by the base station on a transmission time interval TTI where a paging opportunity of the UE is located, wherein the paging message carries the downlink data; and acquiring the downlink data carried in the paging message.
According to another embodiment of the present invention, there is also provided a method for receiving feedback information, including: sending downlink data to User Equipment (UE) in an inactive state; receiving a feedback data packet sent by the UE in the inactive state by using an unlicensed uplink channel, wherein the feedback data packet is used for confirming and feeding back the reception of the downlink data.
Optionally, the sending the downlink data to the UE in the inactive state includes: and when the downlink data can be sent in the paging message is determined, sending the paging message on the transmission time interval TTI where the paging opportunity of the UE is located according to the attribute of the downlink data, wherein the downlink data is carried in the paging message.
Optionally, the attribute of the downlink data includes at least one of: an attribute of a size of the downlink data; the attribute of the service to which the downlink data belongs, wherein the attribute of the service to which the downlink data belongs includes at least one of the following: the time delay attribute of the service and the reliability attribute of the service.
According to another embodiment of the present invention, there is also provided a transmission apparatus of feedback information, including: a first receiving module, configured to receive downlink data from a base station by a user equipment UE in an inactive state; a feedback module, configured to perform acknowledgement feedback of the downlink data reception by using an unlicensed uplink channel by the UE in the inactive state.
Optionally, the feedback module comprises: a determining unit, configured to determine, by the UE in the inactive state, the unlicensed uplink channel according to configuration information corresponding to the unlicensed uplink channel, where the configuration information is determined by at least one of the following manners: the manner in which the base station notifies in the broadcast channel; the manner in which the base station notifies in the dedicated signaling channel; a mode predetermined by a standard protocol; a feedback unit, configured to perform acknowledgment feedback on the downlink data by using the determined unlicensed uplink channel by the UE in the inactive state.
Optionally, the configuration information includes at least one of: the position information of the time domain and the frequency domain of the unlicensed uplink channel; information of a modulation and coding mode sent by the unauthorized uplink channel; and whether the unlicensed uplink channel is attached with the information of the preamble or not.
According to another embodiment of the present invention, there is also provided a receiving apparatus of feedback information, including: a sending module, configured to send downlink data to a UE in an inactive state; a second receiving module, configured to receive a feedback data packet sent by the UE in the inactive state by using an unlicensed uplink channel, where the feedback data packet is used to perform acknowledgement feedback on reception of the downlink data.
Optionally, the sending module includes: a second sending unit, configured to send, according to an attribute of the downlink data, the paging message at a transmission time interval TTI at which a paging opportunity of the UE is located when it is determined that the downlink data can be sent in the paging message, where the paging message carries the downlink data.
Optionally, after the sending unit sends the paging message on the TTI where the paging opportunity of the UE is located according to the attribute of the downlink data, the apparatus further includes: the starting module is used for starting the timer; a resending module, configured to resend the paging message to the UE when the feedback data packet sent by the UE in the inactive state using the unlicensed uplink channel is not received before the timer expires.
Optionally, the storage medium includes a stored program, where the program executes the method described in any one of the above methods for transmitting feedback information or executes the method described in any one of the methods for receiving feedback information.
Optionally, the processor is configured to run a program, where the program is run to execute the method of any one of the methods for sending feedback information or to execute the method of any one of the methods for receiving feedback information.
According to still another embodiment of the present invention, there is also provided a storage medium. The storage medium is configured to store program code for performing the above steps.
By the invention, the UE in the inactive state receives the downlink data from the base station; and after receiving the downlink data, performing confirmation feedback of downlink data reception to the base station by using the unauthorized uplink channel. Therefore, the problem that the terminal cannot effectively transmit the downlink data acknowledgement feedback information in the inactive state can be solved, and the effect that the terminal can effectively transmit the downlink data acknowledgement feedback information in the inactive state is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a block diagram of a hardware configuration of a mobile terminal of a method for transmitting feedback information according to an embodiment of the present invention;
fig. 2 is a flowchart of a method of transmitting feedback information according to an embodiment of the present invention;
fig. 3 is a flowchart of a method of receiving feedback information according to an embodiment of the present invention;
fig. 4 is a flowchart of inactive UE sending an uplink ack feedback message in this embodiment;
FIG. 5 is a flowchart illustrating downlink data retransmission performed by the base station to the UE in the inactive state in this embodiment;
fig. 6 is a schematic format diagram of an acknowledgement feedback message using a UE ID in this embodiment;
fig. 7 is a block diagram of a structure of a transmission apparatus of feedback information according to an embodiment of the present invention;
fig. 8 is a block diagram of a structure of a feedback information receiving apparatus according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The method provided by the first embodiment of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking an example of the method performed by a mobile terminal, fig. 1 is a block diagram of a hardware structure of the mobile terminal for transmitting feedback information according to an embodiment of the present invention. As shown in fig. 1, the mobile terminal 10 may include one or more (only one shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmitting device 106 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the electronic device. For example, the mobile terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the transmission method of the feedback information in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, implements the above-mentioned method. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
In this embodiment, a method for sending feedback information is provided, and fig. 2 is a flowchart of a method for sending feedback information according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:
step S202, User Equipment (UE) in an inactive state receives downlink data from a base station;
step S204, the UE in the inactive state performs acknowledgment feedback for the downlink data reception using an unlicensed uplink channel.
Through the steps, the UE in the inactive state receives downlink data from the base station; and after receiving the downlink data, performing confirmation feedback of downlink data reception to the base station by using the unauthorized uplink channel. Therefore, the problem that the terminal cannot effectively transmit the downlink data acknowledgement feedback information in the inactive state can be solved, and the effect that the terminal can effectively transmit the downlink data acknowledgement feedback information in the inactive state is achieved.
Optionally, the main body of the above steps may be a terminal, but is not limited thereto.
In an optional embodiment, the feedback of acknowledgement of the downlink data reception by the UE in the inactive state using the unlicensed uplink channel may include: the UE in the inactive state determines the unlicensed uplink channel according to configuration information corresponding to the unlicensed uplink channel, where the configuration information is determined by at least one of: the manner in which the base station notifies in the broadcast channel; the manner in which the base station notifies in the dedicated signaling channel; a mode predetermined by a standard protocol; and the UE in the inactive state performs acknowledgment feedback of the downlink data by using the determined unlicensed uplink channel.
In an optional embodiment, the configuration information may include at least one of: the position information of the time domain and the frequency domain of the unauthorized uplink channel; information of modulation coding mode sent by the above-mentioned unauthorized uplink channel; and whether the unlicensed uplink channel is attached with the information of the preamble or not.
In an optional embodiment, the feedback of acknowledgement of the downlink data reception by the UE in the inactive state using an unlicensed uplink channel may include: the UE in the inactive state transmits a feedback packet for confirming reception of the downlink data on the unlicensed uplink channel, where the feedback packet includes at least one of: a leader sequence; the type information of the feedback data packet; bit information for identifying identification information of the UE; a sequence number of the feedback data packet; a subsequent processing instruction for instructing a process after receiving the feedback packet; cyclic redundancy check, CRC, codes. In this embodiment, the preamble sequence is used for timing and/or terminal adapter TA estimation; the type information of the feedback data packet indicates the feedback data packet to transmit confirmation feedback information; bit information for identifying identification information of the UE, wherein the bit information includes all bit information and partial bit information for identifying a user who sends a confirmation packet; the sequence number of the feedback data packet is used for indicating the received downlink data packet; and a subsequent processing instruction for instructing processing after the reception of the downlink data, and for instructing whether or not a transition to a connected state is required for subsequent communication.
In an alternative embodiment, the sequence number of the feedback data packet may be determined by one of the following information: a sequence number of a radio link control, RLC, layer; hybrid automatic repeat request HARQ process identification ID.
In an optional embodiment, the identification information of the UE may be determined by: and a base station for notifying the UE before the UE enters the inactive state.
In an optional embodiment, the receiving, by the UE in the inactive state, the downlink data from the base station may include: the UE in the inactive state receives a paging message sent by the base station at a transmission time interval TTI at which a paging opportunity of the UE is located, where the paging message carries the downlink data; and acquiring the downlink data carried in the paging message.
In this embodiment, a method for receiving feedback information is provided, and fig. 3 is a flowchart of a method for receiving feedback information according to an embodiment of the present invention, as shown in fig. 3, the flowchart includes the following steps:
step S302, sending downlink data to User Equipment (UE) in an inactive state;
step S304 is performed to receive a feedback data packet transmitted by the UE in the inactive state using an unlicensed uplink channel, where the feedback data packet is used to confirm and feed back reception of the downlink data.
Through the steps, after sending downlink data to the user equipment UE in the inactive state, the base station receives a feedback data packet sent by the UE in the inactive state by using an unlicensed uplink channel, wherein the feedback data packet is used for confirming and feeding back the reception of the downlink data. Therefore, the problem that the terminal cannot effectively transmit the downlink data acknowledgement feedback information in the inactive state can be solved, and the effect that the terminal can effectively transmit the downlink data acknowledgement feedback information in the inactive state is achieved.
Optionally, the main body of the above steps may be a base station, but is not limited thereto.
In an optional embodiment, the sending the downlink data to the UE in the inactive state may include: and when determining that the downlink data can be sent in a paging message, sending the paging message at a transmission time interval TTI where a paging opportunity of the UE is located according to the attribute of the downlink data, wherein the paging message carries the downlink data.
In an optional embodiment, after the paging message is sent in the TTI in which the paging opportunity of the UE is located according to the attribute of the downlink data, the method may further include: starting a timer; and re-transmitting the paging message to the UE when the feedback packet transmitted by the UE in the inactive state using the unlicensed uplink channel is not received before the timer expires.
In an alternative embodiment, the feedback data packet may include at least one of: a leader sequence; the type information of the feedback data packet; bit information for identifying identification information of the UE; the sequence number of the feedback data packet; a subsequent processing instruction for instructing a process after receiving the feedback packet; cyclic redundancy check, CRC, codes.
In an alternative embodiment, the sequence number of the feedback data packet may be determined by one of the following information: a sequence number of a radio link control, RLC, layer; hybrid automatic repeat request HARQ process identification ID.
In an optional embodiment, the identification information of the UE may be determined by: and notifying the UE before the UE enters the inactive state.
In an optional embodiment, the attribute of the downlink data may include at least one of: an attribute of a size of the downlink data; attributes of the service to which the downlink data belongs, wherein the attributes of the service to which the downlink data belongs include at least one of the following: the delay attribute of the service and the reliability attribute of the service.
Through the method, the UE in the inactive state directly sends the confirmation feedback by using the unauthorized channel and keeps in the inactive state. Therefore, the UE in the inactive state does not need to be frequently switched between the connected state and the inactive state, and the signaling overhead is saved. Accordingly, power consumption of the inactive UE is reduced.
The present invention will be described in detail with reference to the following specific examples:
specific example 1:
fig. 4 is a flowchart of sending an uplink ack feedback message by an inactive UE in this embodiment, and as shown in fig. 4, the specific implementation steps are as follows:
step 1: and after detecting that the downlink data arrives, the base station determines to directly send the data packet in the paging message according to the property of the downlink data packet. Optionally, the property of the data packet may be the size of the data packet, or an attribute of a service to which the data packet belongs. Optionally, the attribute of the service to which the data packet belongs may include a delay attribute, a reliability attribute, and the like of the service.
Step 2: the base station transmits a paging message in the TTI where the paging opportunity of the UE is located, and the paging message is attached with the downlink data packet.
And step 3: the UE directly sends the acknowledgement feedback message of the data packet received in the paging in the subsequent unlicensed channel. The whole process is that the UE is kept in inactive state.
Specific example 2
Fig. 5 is a flowchart illustrating downlink data retransmission performed by the base station to the UE in the inactive state in this embodiment, and as shown in fig. 5, the specific implementation steps are as follows:
step 1: and the base station transmits a paging message in the TTI where the paging opportunity of the UE is positioned, wherein the paging message is attached with the downlink data packet.
Step 2: the base station detects whether the acknowledgement feedback message of the transmitted downlink data packet is received within a certain time. Alternatively, the base station may prefer to start a timer after sending the paging message with data, for example, if the timer is over, it indicates that the acknowledgment feedback message of the sent downlink data packet is not received within a certain time.
And step 3: and the base station sends the paging message with the retransmitted data packet in the TTI where the paging opportunity of the subsequent UE is positioned, and returns to the step 2.
Specific example 3:
fig. 6 is a schematic diagram of a format of an acknowledgment feedback message using a UE ID in this embodiment, and as shown in fig. 6, the acknowledgment feedback message may include one or more of the following information: a leader sequence, data packet type information, all or part of the bits of the UE identity, a specific sequence number of the confirmed data packet, a subsequent processing indication, and a CRC check code. Wherein, the preamble sequence can be used for timing and/or TA estimation; the data packet type indicates that the data packet is used for transmitting acknowledgement feedback information; the UE identity is used for identifying the user sending the confirmation feedback; the sequence number of the specific confirmed data packet is used for indicating the successfully received downlink data packet; the follow-up indication indicates whether a transition to a connected state is required for subsequent communication. Optionally, the UE identity may be notified to the UE by the base station when the user enters an inactive state.
Through the above embodiments, the UE in the inactive state directly sends the acknowledgement feedback using the unlicensed channel and remains in the inactive state. Therefore, the UE in the inactive state does not need to be frequently switched between the connected state and the inactive state, and the signaling overhead is saved. Accordingly, power consumption of the inactive UE is reduced.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In this embodiment, a device for sending feedback information is further provided, where the device is used to implement the foregoing embodiments and preferred embodiments, and details of the foregoing description are omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 7 is a block diagram of a structure of a transmission apparatus of feedback information according to an embodiment of the present invention, as shown in fig. 7, the apparatus including: a first receiving module 702 and a feedback module 704, which are described in detail below:
a first receiving module 702, configured to receive downlink data from a base station by a user equipment UE in an inactive state; a feedback module 704, connected to the first receiving module, configured to perform acknowledgement feedback of the downlink data reception by using an unlicensed uplink channel by the UE in the inactive state.
In an alternative embodiment, the feedback module 704 may include: determining means for determining the unlicensed uplink channel by the UE in the inactive state according to configuration information corresponding to the unlicensed uplink channel, wherein the configuration information is determined by at least one of: the manner in which the base station notifies in the broadcast channel; the manner in which the base station notifies in the dedicated signaling channel; a mode predetermined by a standard protocol; a feedback unit, configured to perform acknowledgment feedback of the downlink data by using the determined unlicensed uplink channel by the UE in the inactive state.
In an optional embodiment, the configuration information may include at least one of: the position information of the time domain and the frequency domain of the unauthorized uplink channel; information of modulation and coding modes sent by the unauthorized uplink channel; and whether the unlicensed uplink channel is attached with the information of the preamble or not.
In an alternative embodiment, the feedback module 704 may include: a first transmitting unit, configured to transmit, by the UE in the inactive state, a feedback packet for confirming reception of the downlink data on the unlicensed uplink channel, where the feedback packet includes at least one of: a leader sequence; the type information of the feedback data packet; bit information for identifying the identification information of the UE; a sequence number of the feedback data packet; a subsequent processing instruction for instructing a process after receiving the feedback packet; cyclic redundancy check, CRC, codes.
In an alternative embodiment, the sequence number of the feedback data packet may be determined by one of the following information: a sequence number of a radio link control, RLC, layer; hybrid automatic repeat request HARQ process identification ID.
In an optional embodiment, the identification information of the UE may be determined by: and a base station for notifying the UE before the UE enters the inactive state.
In an optional embodiment, the first receiving module 702 may include: a receiving unit, configured to receive, by the UE in the inactive state, a paging message sent by the base station at a transmission time interval TTI at which a paging opportunity of the UE is located, where the paging message carries the downlink data; and an acquiring unit, connected to the third sending unit, for acquiring the downlink data carried in the paging message.
In an optional embodiment, the attribute of the downlink data may include at least one of: an attribute of a size of the downlink data; the attribute of the service to which the downlink data belongs, wherein the attribute of the service to which the downlink data belongs includes at least one of the following: the delay attribute of the service and the reliability attribute of the service.
Fig. 8 is a block diagram of a structure of a feedback information receiving apparatus according to an embodiment of the present invention, and as shown in fig. 8, the apparatus includes: the sending module 802 and the second receiving module 804 are described in detail below:
a sending module 802, configured to send downlink data to a UE in an inactive state; a second receiving module 804, connected to the sending module 802, configured to receive a feedback data packet sent by the UE in the inactive state through an unlicensed uplink channel, where the feedback data packet is used to confirm and feedback reception of the downlink data.
In an optional embodiment, the sending module 802 may include: a second sending unit, configured to send, according to an attribute of the downlink data, the paging message at a transmission time interval TTI in which a paging opportunity of the UE is located when it is determined that the downlink data can be sent in the paging message, where the paging message carries the downlink data.
In an optional embodiment, after the sending unit sends the paging message in the TTI where the paging opportunity of the UE is located according to the attribute of the downlink data, the apparatus may further include: the starting module is used for starting the timer; a resending module, configured to resend the paging message to the UE when the feedback data packet sent by the UE in the inactive state using the unlicensed uplink channel is not received before the timer expires.
In an alternative embodiment, the feedback data packet may include at least one of: a leader sequence; the type information of the feedback data packet; bit information for identifying identification information of the UE; the sequence number of the feedback data packet; a subsequent processing instruction for instructing a process after receiving the feedback packet; cyclic redundancy check, CRC, codes.
In an alternative embodiment, the sequence number of the feedback data packet may be determined by one of the following information: a sequence number of a radio link control RLC layer; hybrid automatic repeat request HARQ process identification ID.
In an optional embodiment, the identification information of the UE may be determined by: and notifying the UE before the UE enters the inactive state.
In an optional embodiment, the attribute of the downlink data may include at least one of: an attribute of a size of the downlink data; the attribute of the service to which the downlink data belongs, wherein the attribute of the service to which the downlink data belongs includes at least one of the following: the delay attribute of the service and the reliability attribute of the service.
In an optional embodiment, the storage medium includes a stored program, where the program executes the method described in any one of the above methods for transmitting feedback information or executes the method described in any one of the methods for receiving feedback information.
In an optional embodiment, the processor is configured to run the program, where the program is run to perform any one of the methods for transmitting the feedback information or perform any one of the methods for receiving the feedback information.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for executing the above steps.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Alternatively, in the present embodiment, the processor executes the above steps according to the program code stored in the storage medium.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described in detail here.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A method for sending feedback information, comprising:
receiving downlink data from a base station by User Equipment (UE) in an inactive state;
the UE in the inactive state utilizes an unauthorized uplink channel to perform acknowledgement feedback of the downlink data reception; wherein the feedback confirmation of the downlink data reception by the UE in the inactive state using the unlicensed uplink channel includes:
the UE in the inactive state determines the unlicensed uplink channel according to configuration information corresponding to the unlicensed uplink channel, wherein the configuration information is determined by at least one of the following methods: receiving configuration information notified by a base station in a broadcast channel; receiving configuration information notified by a base station in a dedicated signaling channel; a mode predetermined by a standard protocol;
and the UE in the inactive state utilizes the determined unauthorized uplink channel to confirm and feed back the downlink data.
2. The method of claim 1, wherein the configuration information comprises at least one of:
the position information of the time domain and the frequency domain of the unlicensed uplink channel;
information of a modulation and coding mode sent by the unauthorized uplink channel;
and whether the unlicensed uplink channel is attached with the information of the preamble or not.
3. The method of claim 1, wherein the receiving, by the UE in the inactive state, the downlink data from the base station comprises:
the UE in the inactive state receives a paging message sent by the base station on a transmission time interval TTI where a paging opportunity of the UE is located, wherein the paging message carries the downlink data;
and acquiring the downlink data carried in the paging message.
4. A method for receiving feedback information, comprising:
sending downlink data to User Equipment (UE) in an inactive state;
receiving a feedback data packet sent by the UE in the inactive state by using an unlicensed uplink channel, wherein the feedback data packet is used for confirming and feeding back the reception of the downlink data; wherein, receiving the feedback data packet sent by the UE using the unlicensed uplink channel in the inactive state includes: receiving a feedback data packet sent by the UE in the inactive state by using the determined unlicensed uplink channel when the UE in the inactive state determines the unlicensed uplink channel according to configuration information corresponding to the unlicensed uplink channel, wherein the configuration information is determined by at least one of the following methods: receiving configuration information notified by a base station in a broadcast channel; receiving configuration information notified by a base station in a dedicated signaling channel; by means of a pre-agreed standard protocol.
5. The method of claim 4, wherein sending the downlink data to the UE in the inactive state comprises:
and when determining that the downlink data can be sent in a paging message, sending the paging message on a transmission time interval TTI where a paging opportunity of the UE is located according to the attribute of the downlink data, wherein the downlink data is carried in the paging message.
6. The method of claim 5, wherein after the paging message is transmitted in the TTI where the paging opportunity of the UE is located according to the attribute of the downlink data, the method further comprises:
starting a timer;
and when the feedback data packet sent by the UE in the inactive state by using the unauthorized uplink channel is not received before the timer is overtime, the paging message is sent to the UE again.
7. The method of claim 5, wherein the attribute of the downstream data comprises at least one of:
an attribute of a size of the downlink data;
attributes of the service to which the downlink data belongs, wherein the attributes of the service to which the downlink data belongs include at least one of the following: the time delay attribute of the service and the reliability attribute of the service.
8. An apparatus for transmitting feedback information, comprising:
a first receiving module, configured to receive downlink data from a base station by a user equipment UE in an inactive state;
a feedback module, configured to perform acknowledgement feedback on the downlink data reception by using an unlicensed uplink channel by the UE in the inactive state; wherein the feedback module comprises:
a determining unit, configured to determine, by the UE in the inactive state, the unlicensed uplink channel according to configuration information corresponding to the unlicensed uplink channel, where the configuration information is determined by at least one of the following manners: the manner in which the base station notifies in the broadcast channel; the manner in which the base station notifies in the dedicated signaling channel; a mode predetermined by a standard protocol;
a feedback unit, configured to perform acknowledgment feedback on the downlink data by using the determined unlicensed uplink channel by the UE in the inactive state.
9. An apparatus for receiving feedback information, comprising:
a sending module, configured to send downlink data to a UE in an inactive state;
a second receiving module, configured to receive a feedback data packet sent by the UE in the inactive state through an unlicensed uplink channel, where the feedback data packet is used to perform acknowledgement feedback on reception of the downlink data; the second receiving module is further configured to receive a feedback data packet sent by the UE in the inactive state by using the determined unlicensed uplink channel when the UE in the inactive state determines the unlicensed uplink channel according to configuration information corresponding to the unlicensed uplink channel, where the configuration information is determined by at least one of the following manners: receiving configuration information notified by a base station in a broadcast channel; receiving configuration information notified by a base station in a dedicated signaling channel; by means of pre-agreed standard protocols.
10. The apparatus of claim 9, wherein the sending module comprises:
a second sending unit, configured to send, according to an attribute of the downlink data, the paging message at a transmission time interval TTI at which a paging opportunity of the UE is located when it is determined that the downlink data can be sent in the paging message, where the paging message carries the downlink data.
11. A storage medium comprising a stored program, wherein the program when executed performs the method of any of claims 1 to 3 or performs the method of any of claims 4 to 7.
12. A processor, configured to run a program, wherein the program when running performs the method of any one of claims 1 to 3, or performs the method of any one of claims 4 to 7.
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| CN201710218208.4A CN108696340B (en) | 2017-04-05 | 2017-04-05 | Method and device for sending and receiving feedback information |
| PCT/CN2018/081943 WO2018184571A1 (en) | 2017-04-05 | 2018-04-04 | Feedback information transmission and reception methods and related device, and storage medium |
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| CN201710218208.4A CN108696340B (en) | 2017-04-05 | 2017-04-05 | Method and device for sending and receiving feedback information |
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| CN109565835B (en) * | 2018-10-31 | 2023-10-10 | 北京小米移动软件有限公司 | Data transmission method, device, base station, terminal and storage medium |
| CN111836361B (en) * | 2019-08-12 | 2022-06-17 | 维沃移动通信有限公司 | Data receiving method, data sending method, terminal and network equipment |
| US11271781B2 (en) | 2019-12-20 | 2022-03-08 | Huawei Technologies Co., Ltd. | Transmission in an inactive state |
| CN113497685A (en) * | 2020-03-18 | 2021-10-12 | 深圳传音控股股份有限公司 | Data transmission method and related product |
| CN111727614B (en) * | 2020-04-30 | 2023-10-03 | 北京小米移动软件有限公司 | Terminal state switching processing and control method and device, communication equipment and storage medium |
| CN115843423A (en) * | 2021-07-22 | 2023-03-24 | 上海诺基亚贝尔股份有限公司 | Acknowledgement feedback for positioning in radio resource control inactive state |
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